EP3280929B1 - Schwingungstilger für einen antriebsstrang - Google Patents

Schwingungstilger für einen antriebsstrang Download PDF

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Publication number
EP3280929B1
EP3280929B1 EP16719788.8A EP16719788A EP3280929B1 EP 3280929 B1 EP3280929 B1 EP 3280929B1 EP 16719788 A EP16719788 A EP 16719788A EP 3280929 B1 EP3280929 B1 EP 3280929B1
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EP
European Patent Office
Prior art keywords
connecting device
vibration absorber
hub
elastomer
absorber according
Prior art date
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Active
Application number
EP16719788.8A
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German (de)
English (en)
French (fr)
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EP3280929A1 (de
Inventor
Markus Dürre
Wade SINGLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vibracoustic SE
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Vibracoustic SE
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Publication date
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Publication of EP3280929A1 publication Critical patent/EP3280929A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/124—Elastomeric springs
    • F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/68—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being made of rubber or similar material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/136—Plastics springs, e.g. made of rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/1414—Masses driven by elastic elements
    • F16F15/1435—Elastomeric springs, i.e. made of plastic or rubber
    • F16F15/1442—Elastomeric springs, i.e. made of plastic or rubber with a single mass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/31—Flywheels characterised by means for varying the moment of inertia

Definitions

  • the invention relates to a torsional vibration damper for a drive train, the vibration damper having a hub and a flywheel.
  • the vibration damper also has a connecting device with at least one elastomer body, which connects the hub and the flywheel elastically to one another.
  • Such vibration absorbers can be used, for example, at a connection point between two shafts, for example a drive shaft and a cardan shaft, of a motor vehicle.
  • the ends of shafts can be connected with the aid of connecting devices that can compensate for a slight angular misalignment, for example.
  • Such connecting devices can also have vibration dampers or dampers in order to avoid that irregularities in the rotational movement generated by a drive means, for example an internal combustion engine, for example torsional vibrations, are spread over the entire drive train.
  • Torsional articulated shaft absorbers which for example have a vibration absorber of the type mentioned at the outset, can effectively produce torsional vibrations in the drive train to decrease.
  • Vibration absorbers in particular torsional or torsional vibration absorbers, usually rotate with the shaft, the vibrations of which they are intended to absorb.
  • care must therefore be taken that the imbalance, for example of the cardan shaft, is not excessively increased by the attached cardan shaft damper and that this unintentionally generates additional radial vibrations.
  • U.S. 2,834,226 A discloses a torsional vibration damper which has a hub element and an inertia ring which are connected to one another via damping elements.
  • the damping element has a pair of rubber washers and a metallic intermediate layer.
  • GB 813 336 A deals with a torsional vibration damper for a crankshaft, which has a hub and an inertia ring which are connected to one another via a folded rubber layer. A ring is provided in the folded rubber layer.
  • U.S. 4,194,372 A describes a flexible drive coupling which has spirally wound strips, the spaces between two adjacent strips being filled with an elastic material.
  • WO 2012/052091 A1 describes a torsional vibration damper.
  • the invention is based on the task of developing a vibration damper of the type mentioned at the beginning in such a way that the vibrations caused by the vibration damper are reduced and the reliability of the vibration damper is increased.
  • a vibration damper for a drive train which has a hub and a flywheel
  • the vibration damper having a connecting device with a first elastomer body and a second elastomer body, which connects the hub and the flywheel elastically to one another in such a way that the Connecting device has at least one reinforcing element which is at least partially in the first and second elastomeric body is embedded.
  • the connecting device has an outer sleeve which rests on a fastening section of the flywheel.
  • the first elastomer body is vulcanized onto the hub and onto the reinforcement element, while the second elastomer body is vulcanized onto the reinforcement element and the outer sleeve. This has a cylindrical intermediate sleeve in some areas.
  • This solution has the advantage that a radial rigidity of the connecting device is increased without significantly influencing an axial rigidity or a torsional rigidity.
  • the increased radial rigidity reduces the deformation of the connecting device in the radial direction under load. If the connecting device is deformed less in the radial direction, there is less displacement of the flywheel relative to the hub. The eccentricity of the rotation of the flywheel is thus reduced, which is reflected in a reduced imbalance.
  • a loaded elastomer layer as it is arranged, for example, as an elastomer body between a hub and a flywheel of a vibration damper, bulges out on its axial end faces under load.
  • Elastomers are essentially incompressible, so that the material of the elastomer layer, which is compressed in the radial direction, gives way in the axial direction. Conversely, such an elastomer layer bulges at its axial end faces when it is pulled apart in the radial direction.
  • the reinforcement element divides the elastomer body into several part bodies, the ratio of free to bound surface area is smaller than that of the original individual elastomer body.
  • the vibration damper according to the invention is significantly more rigid because the elastomer is only small can evade and therefore greater forces are required to compress the elastomer.
  • the properties in the axial direction and in the torsion direction are not or only slightly influenced by the reinforcing element.
  • the lower deformation of the surface of the elastomer body increases the service life and thus the reliability of the vibration absorber.
  • the solution according to the invention is also insensitive to dirt and is not subject to mechanical wear.
  • the reinforcement element has an intermediate sleeve that is cylindrical in some areas.
  • Such an intermediate sleeve can be designed in a particularly simple manner in such a way that it does not introduce any imbalance of its own into the vibration damper.
  • the reinforcement element can have a multiplicity of recesses for receiving elastomer.
  • the elastomer body can thereby be positively connected to the reinforcement element, which increases the reliability and the service life of the vibration absorber.
  • the form-fitting connection can replace a material connection (vulcanization), which means that cost-intensive work steps, for example the application of a binding agent, can be dispensed with. In addition to the costs, the environmental impact is reduced at the same time.
  • the reinforcing element can have recesses arranged one behind the other in a circumferential direction and spaced apart from one another. If the reinforcement element is vulcanized into the elastomer body, this makes it easier to make the vulcanization tool robust. In particular, the cutouts provide more space for the vulcanization tool.
  • the connecting device can be designed in such a way that it can be pressed into the flywheel. This allows a modular construction of the vibration absorber. Such a modular structure allows the same flywheel mass to be put together with different connecting devices, so that vibration absorbers with different properties result. In the production of the vibration absorber, individual requirements can thus be dealt with more flexibly.
  • the connecting device has at least one recess in the circumferential direction, which can be closed when it is pressed into the flywheel.
  • This recess has the effect that no plastic deformation of metal parts is necessary for prestressing or calibration of the elastomer body.
  • the connecting device is compressed in the circumferential direction when it is pressed in until the recess or the gap is closed. This deformation of the connecting device takes place elastically. Since this reduces the diameter of the connecting device, the elastomer layers contained therein are pressed together and thus calibrated. Compared to calibration by forming, a significantly higher preload or calibration can be achieved.
  • the connecting device can have a main section which extends essentially in the axial direction and a collar section which protrudes in the radial direction from the main section, the hub having a collar section which extends in the radial direction and which rests against the collar section of the connecting device .
  • This essentially L-shaped cross section of the connecting device and the hub results in contact surfaces in the axial direction which counteract a tendency of the flywheel to wobble. This increases the cardanic rigidity. If the centrifugal mass should be cardanically deflected, then it is straightened up again by the action of force in the axial direction by means of the collar sections.
  • the flywheel can have a disk-shaped connecting section in which an opening for receiving a deflection damping device is arranged.
  • the deflection damping device can have an annular body from which projections for clipping into the openings protrude axially at the ends in such a way that the projections radially overlap edges of the openings in the clipped-in state.
  • Such a deflection damping device can be mounted in the opening in a simple manner. The deflection damping device is pressed into the opening and compressed radially in the process. When the deflection damping device has reached its assembly position, the projections snap into place at the axial ends of the opening and fix the deflection damping device. An additional work step to fix the deflection damping device in the opening is not necessary.
  • the deflection damping device can have an annular body that can be obtained from a metal strip by roll forming, from which an edge flange protrudes radially outward on a first axial end side for axial positioning of the deflection damping device in the opening and wherein a second axial end side is flanged to fix the deflection damping device.
  • the in Fig. 1 The vibration damper 10 shown has a flywheel 12, a hub 14 and a connecting device 16.
  • the flywheel 12, the hub 14 and the connecting device 16 can each be based on rotationally symmetrical bodies.
  • the connecting device 16 elastically connects the flywheel 12 to the hub 14.
  • the vibration damper 10 is provided, for example, for arrangement on a cardan shaft coupling.
  • the flywheel 12 has, for example, openings 18 for receiving assembly bushings (not shown) of a cardan shaft coupling.
  • the flywheel 12 has a radially outer flywheel 20, a connecting section 22 in which the openings 18 are arranged, and a radially inner fastening section 24.
  • the flywheel 12, the hub 14 and the connecting device 16 are arranged, for example, concentrically around an axis of rotation 26.
  • the flywheel 12, the hub 14 and the connecting device 16 can be designed in such a way that their center of gravity lies on the axis of rotation 26.
  • the connecting device 16 has, as in Fig. 2 shown, a first elastomer body 28 and a second elastomer body 30, in which a reinforcing element 32 is embedded.
  • the connecting device 16 has an outer sleeve 34 which rests on the fastening section 24 of the flywheel 12.
  • the first elastomer body 28 and the second elastomer body 30 together form a functional unit in which the reinforcing element 32 is embedded and can be made in one piece.
  • the first elastomer body 28 is vulcanized onto the hub 14 and onto the reinforcement element 32.
  • the second elastomer body 30 is vulcanized onto the reinforcement element 32 and the outer sleeve 34.
  • the connecting device 16 is pressed into the connecting section 22 of the flywheel 12, so that the outer sleeve 34 enters into a force-locking connection with the fastening section 24.
  • the vibration damper 10 is used, for example, to eradicate torsional vibrations, that is to say, synchronism fluctuations during the rotary movement about the axis of rotation 26.
  • the elastomer bodies 28, 30 serve for the elastic coupling the hub 14 with the flywheel 12.
  • the moment of inertia of the flywheel 12 is transmitted by means of this elastic coupling to the hub 14 and a shaft of a drive train connected to it, for example, in order to counteract a spreading or amplification of the wow and flutter.
  • the elastomer bodies 28, 30 and the reinforcing element 32 work together in terms of their properties, in particular the rigidity, in the direction of rotation or torsion, so that they correspond to an elastomer body whose thickness in the radial direction corresponds to the sum of the thicknesses of the elastomer bodies 28,30. Their arrangement corresponds to a series connection of the elastomer bodies 28, 30. Compared to a conventional elastomer body without a reinforcing element 32, the properties of the connecting device 16 in the torsion direction are almost unchanged.
  • Elastomers such as rubber or silicone are incompressible. If a conventional elastomer body without reinforcing element 32 is provided between the hub 14 and the flywheel 12 and is compressed when the hub 14 is displaced radially with respect to the flywheel 12, the elastomer deviates in the axial direction, as a result of which the axial free surfaces of the conventional elastomer body are bulged. On the radially opposite side, the radial displacement results in the axially free surfaces of the elastomer body buckling in a concave manner. The deformation of the axial free surfaces of the elastomer body is greater, the greater the ratio of free surface to bound, for example vulcanized, surface.
  • the inventive design of the connecting device 16 with a reinforcing element 32 has the effect that the ratio of free surface to bound surface of the elastomer bodies 28, 30 is particularly small because the thickness of the elastomer bodies 28, 30 in the radial direction is comparatively small. This reduces the deformation of the axial free surfaces and at the same time the rigidity of the connecting device 16 is increased in the radial direction, since the volume of the elastomeric bodies 28, 30, which can deflect in the axial direction, is reduced.
  • the reinforcing element 32 is designed, for example, as a cylindrical metal sleeve.
  • the reinforcement element 32 thus achieves a higher radial rigidity of the connecting device 16 with the same amount of elastomer, without reducing the torsional rigidity or the service life of the vibration damper 10. Due to the high radial rigidity, the deflection of the flywheel 12 is limited in the event of a radial load and thus additional imbalance of the vibration absorber 10 is avoided.
  • Fig. 3 and Fig. 4 show the connecting device 16 together with the hub 14 as a semi-finished product before being pressed into the flywheel 12.
  • the connecting device 16 which is largely rotationally symmetrical, has a circumferential recess 36 that extends over the entire axial width of the connecting device 16.
  • An outer circumference of the connecting device 16 is larger than an opening provided for receiving the connecting device 16 in the fastening section 24 of the flywheel 12.
  • the connecting device 16 When the connecting device 16 is pressed into the flywheel 12, the connecting device 16 is consequently compressed in the circumferential direction, so that the recess 36 closes. Due to the forces that occur, the frictional connection between the outer sleeve 34 and the flywheel 12 is generated. In addition, the material of the elastomer bodies 28, 30 is pretensioned or calibrated.
  • the outer sleeve 34, the reinforcement member 32 and the hub 14 are usually formed from metal. Due to the fact that no reshaping of the outer sleeve 34, the reinforcing element 32 or the hub 14 is necessary, the use of other materials, for example the use of plastic, is also conceivable.
  • a second embodiment of the invention in the form of a vibration damper 60 is shown.
  • the connecting device 16 has a main section 62 and a collar section 64.
  • the main portion 62 is substantially cylindrical.
  • the collar section 64 projects outward in the radial direction from the main section 62 in the manner of a flange.
  • the first elastomer body 28, the second elastomer body 30 and the reinforcing element 32 thus have an L-shape in cross section.
  • the hub 14 is also L-shaped with a collar section 36 in order to enclose the connecting device 16 in the area of the collar section 64 in the axial direction between itself and the flywheel 12.
  • a stabilization of the flywheel 12 is effected in the axial direction, since there is a pressure load in the axial direction on one side and a pressure load on the radially opposite side of the hub 14 and the connecting device 16
  • Tensile load results.
  • elastomers are significantly stiffer than in the shear direction.
  • the vibration damper 60 is thus mounted in a significantly more rigid manner in the axial direction than a vibration damper whose connecting device 16 and hub 14 do not have a collar section 64, 66.
  • the collar sections 64, 66 protrude perpendicular to the axis of rotation 26. It is also possible to allow the collar sections 64, 66 to protrude at an angle other than 90 ° relative to the axis of rotation 26.
  • the connecting device 16 can be configured in various ways.
  • Fig. 7 shows an exemplary embodiment of a reinforcement element 70.
  • the reinforcement element is cylindrical and formed from a perforated plate.
  • the reinforcement element 70 therefore has a multiplicity of recesses 72.
  • the reinforcing element 70, together with the outer sleeve 34 and the hub 14 is placed in a vulcanization tool and encapsulated with elastomer.
  • the elastomer flows into the recesses 72 and thus forms a form fit with the reinforcement element 70 after vulcanization.
  • the recesses 72 can be cylindrical, but also have any other suitable shape.
  • the diameter of the recesses 72 is, for example, between 1/4 and 1/20 of the axial width of the reinforcing element 70.
  • the recesses 72 can be arranged, for example, in rows or in staggered rows. Because the elastomer of the elastomer bodies 28, 30 fills the recesses 72 during casting or injection molding, a form fit is created which can make a material connection, e.g. vulcanization, superfluous.
  • Fig. 8 shows a further reinforcement element 80.
  • the reinforcement element 80 has the shape of a ring-shaped circumferential metal band, with recesses 82 being provided on one axial side of the metal band.
  • the recesses 82 can be arranged such that a center of gravity of the reinforcement element 80 continues to lie on the axis of rotation 26. In particular, the recesses 82 can be evenly distributed in the circumferential direction.
  • This configuration of the reinforcement element 80 is particularly advantageous if the elastomer bodies 28, 30 of the connecting device 16 are not designed as completely circumferential, annular elastomer bodies. This is exemplified in the Fig. 9 and 10 shown.
  • the first elastomer body 28 and the second elastomer body 30 each have a circumferential direction Recesses 84.86.
  • the material of the elastomer bodies 28, 30 configured in this way forms elastic support spokes 88 as a functional unit.
  • the recesses 82 make it possible to design a vulcanization tool for producing the support spokes 88 to be more robust, since the space of the recesses 82 is also available for the vulcanization tool.
  • the embodiment shown in the form of a reinforcing element 90 has recesses 92 which extend over the entire axial width of the reinforcing element 90.
  • the reinforcement element 90 is thus formed by a plurality of intermediate plates 94 which are each embedded in the support spokes 88.
  • a vibration damper 110 which is provided for arrangement, for example, on a cardan shaft coupling, is in the Figures 14 to 17 shown. Openings 18 are provided in the fastening section 24 of the flywheel 12.
  • the fastening section 24 can, however, be torsionally deflected to such an extent that the mounting bushings come into contact with the inner surfaces 112.
  • stop damping devices in the form of torsion stops 114 are arranged on the inner surfaces 112, which are in the Figures 18 and 19 are shown by way of example.
  • the torsion stops 114 have an annular body 116, from which projections 118 encircling axially at the ends protrude radially outward. Due to the projections 118, the torsion stops 114 can be fastened in the openings 18 by a clip connection in which the projections 118 overlap the edges of the openings 18. During installation of the vibration damper 110, the torsion stops 114 are clipped in by means of the projections 118.
  • a coating 120 for example made of an inexpensive thermoplastic elastomer, can be applied to an inside of the torsion stops 114.
  • the torsion stops 114 can essentially be made of plastic.
  • FIGS Figures 20 to 22 Another embodiment of a torsion stop 124 is shown in FIGS Figures 20 to 22 shown.
  • the torsion stop 124 is rolled, for example, from a metal strip 126 which is coated on an inner side 128 with a coating, for example made of a soft plastic or a fleece.
  • a protruding securing edge 130 Arranged on a first axial side of the torsion stop 124 is a protruding securing edge 130 with which the torsion stop 124 can be brought into contact with an edge of the opening 18 when it is inserted into the vibration damper 110.
  • a securing edge 132 on a second axial side of the torsion stop 124 can be flanged for safety in order to increase the safety of the connection.
  • the swing ring is pretreated with binding agent for vulcanization.
  • the vulcanization tool is also simplified, since only the hub 14, the reinforcing element 32 and the outer sleeve 34 must be inserted into the vulcanization mold. Space for the heavy and large centrifugal mass 12 does not have to be provided in the vulcanization tool. The parts to be vulcanized are smaller, which increases the technicality of the vulcanization tool, which results in lower unit costs in production.
  • torsion stops 114, 124 can be used flexibly in this modular construction as a standard component in various designs.
  • the reinforcement elements 32, 70, 80, 90 can be combined with all embodiments of the connecting device 16 and with all embodiments of the vibration absorber 10, 60, 110.
  • the torsion stops 114, 124 can be combined with all embodiments of the vibration damper 10, 60, 110. If an embodiment of the vibration absorber 10, 60, 110 does not have any openings 18, these can be added at a suitable point.
  • the connecting device 16 can have more than one reinforcement element 32, 70, 80, 90, so that the connecting device 16 can have more than two elastomer bodies 28, 30.
  • Different reinforcing elements 32, 70, 80, 90 can be spaced apart relative to one another in the radial and / or in the circumferential direction. If several reinforcement elements 32, 70, 80, 90 are used, they do not have to be of identical design. In such an embodiment, the elastomer bodies 28, 30 can have the same or different layer thicknesses.
  • the vibration damper 10, 60, 110 according to the invention can be arranged on almost all rotating parts of the drive train.
  • a connection with a universal joint, constant velocity joint, gear or multi-arm flange is possible. Places where disruptive vibrations occur to a greater extent, for example due to local resonance exaggeration, are preferred for the arrangement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Dampers (AREA)
  • Motor Power Transmission Devices (AREA)
  • Vibration Prevention Devices (AREA)
EP16719788.8A 2015-04-08 2016-04-08 Schwingungstilger für einen antriebsstrang Active EP3280929B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/681,583 US9909642B2 (en) 2015-04-08 2015-04-08 Damper for a drive train
PCT/EP2016/057833 WO2016162527A1 (de) 2015-04-08 2016-04-08 Schwingungstilger für einen antriebsstrang

Publications (2)

Publication Number Publication Date
EP3280929A1 EP3280929A1 (de) 2018-02-14
EP3280929B1 true EP3280929B1 (de) 2021-11-03

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EP16719788.8A Active EP3280929B1 (de) 2015-04-08 2016-04-08 Schwingungstilger für einen antriebsstrang

Country Status (6)

Country Link
US (1) US9909642B2 (ko)
EP (1) EP3280929B1 (ko)
KR (1) KR102502553B1 (ko)
CN (1) CN107636345B (ko)
ES (1) ES2905414T3 (ko)
WO (1) WO2016162527A1 (ko)

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Publication number Priority date Publication date Assignee Title
CN107740831A (zh) * 2017-11-02 2018-02-27 张锦初 减震结构及其制作方法
JP7162913B2 (ja) * 2018-05-17 2022-10-31 鍋屋バイテック株式会社 軸継手
DE202018104624U1 (de) * 2018-07-06 2019-10-08 Liebherr-Components Biberach Gmbh Bohrgerät
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US9909642B2 (en) 2018-03-06
WO2016162527A1 (de) 2016-10-13
CN107636345A (zh) 2018-01-26
CN107636345B (zh) 2021-01-12
US20160298720A1 (en) 2016-10-13
ES2905414T3 (es) 2022-04-08
EP3280929A1 (de) 2018-02-14
KR20170135934A (ko) 2017-12-08

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